{"id":"CVE-2026-80605","state":"PUBLISHED","title":"HID: picolcd: prevent NULL pointer dereference in picolcd_send_and_wait()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: picolcd: prevent NULL pointer dereference in picolcd_send_and_wait()\n\nIn picolcd_send_and_wait(), an integer overflow of the signed loop counter\n'k' can theoretically lead to a NULL pointer dereference of 'raw_data'.\nIf the loop executes more than INT_MAX times, 'k' becomes negative,\nmaking the condition 'k < size' true even when 'size' is 0.\n\nChange the type of 'k' to 'unsigned int' to prevent the overflow and\neliminate the out-of-bounds access.\n\nFound by Linux Verification Center (linuxtesting.org) with the Svace static\nanalysis tool.\n\n[jkosina@suse.com: extended hash length]","publishedAt":"2026-08-28T06:48:30.362Z","updatedAt":"2026-08-28T06:48:30.362Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"42dc0b7b55fe0499fc09183f34a1c46d1dcccf77","versionType":"git"},{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"48caee2c106b03301c72fe389ebff00d852c58d5","versionType":"git"},{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"dc176447c7279435c46735db7da81aed1ec25cc2","versionType":"git"},{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"a02d5d7ad7ae5fa3756b8332f7350e973085dcb3","versionType":"git"},{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"e4edeefb8d5bfceb2058e2b3291f4ae1e5a76e61","versionType":"git"},{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"d354e523c6f740db758cafcd4c11bb7913285ed8","versionType":"git"},{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"ef649703dce0df1364fcec3cdad9b32d1c522939","versionType":"git"},{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"0021eb09041f021c079be1022934a280f7f176c0","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-picolcd_core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.7","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-picolcd_core.c"]}],"references":["https://git.kernel.org/stable/c/42dc0b7b55fe0499fc09183f34a1c46d1dcccf77","https://git.kernel.org/stable/c/48caee2c106b03301c72fe389ebff00d852c58d5","https://git.kernel.org/stable/c/dc176447c7279435c46735db7da81aed1ec25cc2","https://git.kernel.org/stable/c/a02d5d7ad7ae5fa3756b8332f7350e973085dcb3","https://git.kernel.org/stable/c/e4edeefb8d5bfceb2058e2b3291f4ae1e5a76e61","https://git.kernel.org/stable/c/d354e523c6f740db758cafcd4c11bb7913285ed8","https://git.kernel.org/stable/c/ef649703dce0df1364fcec3cdad9b32d1c522939","https://git.kernel.org/stable/c/0021eb09041f021c079be1022934a280f7f176c0"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80605.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80605","state":"PUBLISHED","datePublished":"2026-08-28T06:48:30.362Z","dateUpdated":"2026-08-28T06:48:30.362Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-26T14:34:25.772Z"},"containers":{"cna":{"title":"HID: picolcd: prevent NULL pointer dereference in picolcd_send_and_wait()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: picolcd: prevent NULL pointer dereference in picolcd_send_and_wait()\n\nIn picolcd_send_and_wait(), an integer overflow of the signed loop counter\n'k' can theoretically lead to a NULL pointer dereference of 'raw_data'.\nIf the loop executes more than INT_MAX times, 'k' becomes negative,\nmaking the condition 'k < size' true even when 'size' is 0.\n\nChange the type of 'k' to 'unsigned int' to prevent the overflow and\neliminate the out-of-bounds access.\n\nFound by Linux Verification Center (linuxtesting.org) with the Svace static\nanalysis tool.\n\n[jkosina@suse.com: extended hash length]"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"42dc0b7b55fe0499fc09183f34a1c46d1dcccf77","versionType":"git"},{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"48caee2c106b03301c72fe389ebff00d852c58d5","versionType":"git"},{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"dc176447c7279435c46735db7da81aed1ec25cc2","versionType":"git"},{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"a02d5d7ad7ae5fa3756b8332f7350e973085dcb3","versionType":"git"},{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"e4edeefb8d5bfceb2058e2b3291f4ae1e5a76e61","versionType":"git"},{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"d354e523c6f740db758cafcd4c11bb7913285ed8","versionType":"git"},{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"ef649703dce0df1364fcec3cdad9b32d1c522939","versionType":"git"},{"version":"fabdbf2fd22fa170b4c5340dbdda5c8cd88fb205","status":"affected","lessThan":"0021eb09041f021c079be1022934a280f7f176c0","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-picolcd_core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.7","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hid/hid-picolcd_core.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/42dc0b7b55fe0499fc09183f34a1c46d1dcccf77"},{"url":"https://git.kernel.org/stable/c/48caee2c106b03301c72fe389ebff00d852c58d5"},{"url":"https://git.kernel.org/stable/c/dc176447c7279435c46735db7da81aed1ec25cc2"},{"url":"https://git.kernel.org/stable/c/a02d5d7ad7ae5fa3756b8332f7350e973085dcb3"},{"url":"https://git.kernel.org/stable/c/e4edeefb8d5bfceb2058e2b3291f4ae1e5a76e61"},{"url":"https://git.kernel.org/stable/c/d354e523c6f740db758cafcd4c11bb7913285ed8"},{"url":"https://git.kernel.org/stable/c/ef649703dce0df1364fcec3cdad9b32d1c522939"},{"url":"https://git.kernel.org/stable/c/0021eb09041f021c079be1022934a280f7f176c0"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-28T06:48:30.362Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}